2024
DOI: 10.1029/2024gl109248
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Entrained Water in Basal Ice Suppresses Radar Bed‐Echo Power at Active Subglacial Lakes

B. H. Hills,
M. R. Siegfried,
D. M. Schroeder

Abstract: Subglacial lakes have been mapped across Antarctica with two methods, radio‐echo sounding (RES) and ice‐surface deformation. At sites where both are coincident, these methods typically provide conflicting interpretations about the ice‐bed interface. With a single exception, active subglacial lakes identified by surface deformation do not display the expected flat, bright, and specular bed reflection in RES data, characteristic of non‐active lakes. This observational conundrum suggests that our understanding of… Show more

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